宏定义
#define	OPAMP_PGA_GAIN_2_OR_MINUS_1 (0x00000000UL)
#define	OPAMP_PGA_GAIN_4_OR_MINUS_3 ( OPAMP_CSR_PGGAIN_0)
#define	OPAMP_PGA_GAIN_8_OR_MINUS_7 ( OPAMP_CSR_PGGAIN_1 )
#define	OPAMP_PGA_GAIN_16_OR_MINUS_15 ( OPAMP_CSR_PGGAIN_1 \| OPAMP_CSR_PGGAIN_0)
#define	OPAMP_PGA_GAIN_32_OR_MINUS_31 (OPAMP_CSR_PGGAIN_2 )
#define	OPAMP_PGA_GAIN_64_OR_MINUS_63 (OPAMP_CSR_PGGAIN_2 \| OPAMP_CSR_PGGAIN_0)

详细描述

备注：

增益符号：

如果OPAMP PGA连接配置为OPAMP_PGA_CONNECT_INVERTINGINPUT_NO或OPAMP_PGA_CONNECT_INVERTINGINPUT_IO0，则增益为正
如果OPAMP PGA连接配置为OPAMP_PGA_CONNECT_INVERTINGINPUT_IO0_BIAS或OPAMP_PGA_CONNECT_INVERTINGINPUT_IO0_IO1_BIAS，则增益可能为正或负，更多详情请参见OPAMP PGA连接

宏定义文档

#define OPAMP_PGA_GAIN_16_OR_MINUS_15 ( OPAMP_CSR_PGGAIN_1 | OPAMP_CSR_PGGAIN_0)

PGA增益可为16或-15

定义在文件 329 行，位于 stm32g4xx_hal_opamp.h。

#define OPAMP_PGA_GAIN_2_OR_MINUS_1 (0x00000000UL)

PGA增益可为2或-1

定义在文件 326 行，位于 stm32g4xx_hal_opamp.h。

#define OPAMP_PGA_GAIN_32_OR_MINUS_31 (OPAMP_CSR_PGGAIN_2 )

PGA增益可为32或-31

定义在文件 330 行，位于 stm32g4xx_hal_opamp.h。

#define OPAMP_PGA_GAIN_4_OR_MINUS_3 ( OPAMP_CSR_PGGAIN_0)

PGA增益可为4或-3

定义在文件 327 行，位于 stm32g4xx_hal_opamp.h。

#define OPAMP_PGA_GAIN_64_OR_MINUS_63 (OPAMP_CSR_PGGAIN_2 | OPAMP_CSR_PGGAIN_0)

PGA增益可为64或-63

定义在文件 331 行，位于 stm32g4xx_hal_opamp.h。

#define OPAMP_PGA_GAIN_8_OR_MINUS_7 ( OPAMP_CSR_PGGAIN_1 )

PGA增益可为8或-7

定义在文件 328 行，位于 stm32g4xx_hal_opamp.h。